A main truss adjustable safety channel

Abstract

The invention discloses an adjustable safety channel for a main truss, which comprises a main truss body, two support frames symmetrically distributed on both sides of the main truss body, a motor on the top of the support frame, and a motor on the top of the support frame. There is a supporting plate on the side, a rotating shaft is arranged between the supporting plate and the supporting frame, a storage wheel is provided on the outside of the rotating shaft, a steel cable is provided on the outside of the storage wheel, and hanging bars are installed on the top of both ends of the main truss body. ring, and the bottom end of the steel cable is fixedly connected with the hanging ring. In the present invention, a motor and an electric push rod are provided, the first switch is turned on to make the motor rotate, and the storage wheel retracts and unwinds the steel cable, so that the steel cable pulls the main truss body to move, and the two ends of the main truss body are fixedly connected to the connecting sleeve, and the connecting sleeve belt As the electric push rod moves up and down, the second switch controls the extension output end of the electric push rod to match the block with the slot. The output end of the electric push rod passes through the through hole, hindering the main truss body from descending, and realizing the automatic fixing of the main truss body.

Description

technical field [0001] The invention relates to the field of building auxiliary equipment, in particular to an adjustable safety channel for a main truss. Background technique [0002] In airport terminals, gymnasiums, theaters, exhibition halls, waiting halls, stadiums and other places, the steel columns are tens of meters high, and the steel roofs can be divided into transition zone grids, standard unit grids, and non-standard units according to their structural characteristics. The four corners of the net frame are the supporting steel columns of the roof of the hall, and the steel columns are reinforced trusses. The cross-section of the members is relatively large. The sub-trusses in the unit are arranged obliquely and cross to form a rhombus grid. [0003] The standard unit grid structure is composed of inter-column piece type main truss and double-layer grid structure. When installing the grid, first install the main truss, and then install the secondary grid. The di...

AI Technical Summary

Problems solved by technology

In the prior art, the work platform is provided by building a support frame, but it takes a lot of space to build a support frame. Because the height of the main truss is high, it is often necessary to lift the main truss, which is inconvenient for high-altitude fixing. It is extremely inconvenient to disassemble, and there are potential safety hazards

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